Hydraulic press system is based on pressure conversion system, the system
pressure is high, the flow is large, the power is big. So should pay special
attention to improve the prime mover power utilization and to prevent the
pressure generated when the shock and vibration, to ensure safe and
reliable.

The hydraulic press according to the pressing process requires the master
cylinder to be able to complete the rapid downstream of a deceleration to
suppress a holding pressure delay of a pressure relief return to a stop (at any
position) of the basic working cycle, and the pressure, speed and holding time
need to be adjusted. Ejector hydraulic cylinder is mainly used to eject the
workpiece, requiring to achieve the top, return, stop the action.

Such as sheet tension, but also requires the top of the hydraulic cylinder
to rise, stop and pressure return and other auxiliary action. Hydraulic press Sometimes the need
to use the blank holder to press the blank to prevent wrinkling around. The
maximum pressure (tonnage) of the main actuator (master cylinder) that can be
output in the main movement is the main specification of the hydraulic press and
has been serialized. The tonnage of the top cylinder is often 20% to 50% of the
tonnage of the master cylinder. The top cylinder of the extruder can be about 1%
of the main tonnage. Double acting tension hydraulic press tonnage cylinder
tonnage, generally used to stretch cylinder tonnage of about 60%. By the
pressure processing technology to determine the speed of the master cylinder,
usually in the hydraulic system directly from the pump, the working speed of not
more than 50mm / s, fast forward speed of not more than 300mm / s, Hydraulic press fast forward
speed and fast forward speed equal.